PPG: Planning and development ofprocedures, policies and guidelinesOSL: Information on policy ef-forts, laws, regulations or strategiesin other states/localitiesRE: Research and evaluation PHLASPI: Interpretation of public health legal authorityRM: Rulemaking REFGEN: Referral to a con- tact/expert outside the NetworkSIR: Surveillance, investigation andreportingTR: Development/implementation oftraining or training resources as wellas communications with agency staffand partners to ensure that publichealth policies are well understoodand correctly implemented.

The coding process was limited by a number of factors, one of which
was the varying amount of data available on Network requests. Another
limitation was the subjective nature of the review process and the fact that
codes were applied based on one author’s assessment. While all requests
were reviewed in detail, the process of creating codes to describe data is inherently subjective and a data set as specific as the Network’s request data
is prone to errors in categorization when reviewed by a single person. Future studies of a similar nature could be improved by implementing a more